Xhr.setRequestHeader('X-Bz-Content-Sha1', 'do_not_verify') defmodule MyApp.Backblaze System.get_env('B2_BUCKET_ID') I’m using req you can use whatever HTTP library you want. We’re going to create a backblaze.ex module to do the presigning. Now your bucket is ready to receive XHR from the browser. 'corsRuleName': 'downloadFromAnyOriginWithUpload', # I'm assuming you have the `b2-linux` binary in your folder.

Note that you cannot pass in a filename like foobar.json you must pass in the content itself. export B2_APPLICATION_KEY_ID=''Įxport B2_APPLICATION_KEY_NAME='my-awesome-bucket-name' Make sure you have the right environment variables set before running the b2-linux binary. I’m using Linux, so I downloaded the Backblaze CLI and here’s how I run it. You cannot set up the right CORS rules in the Backblaze UI. Once you have your bucket, you need to use the Backblaze CLI to set up CORS for it. I’m not going to teach you how to create a bucket. If this article helped you leave a comment please, I always enjoy reading those.Ĭreate your Backblaze B2 bucket and set up CORS. I hope this guide saves a collective thousands of hours out there. We’re then going to use that upload url to directly upload a file to your Backblaze B2 bucket from the browser. I’m going to teach you how to presign a Backblaze B2 upload url using the b2_get_upload_url API method.

I’ve cobbled together blog posts, forums posts, github issues, hell I’ve spelunked chinese stackoverflow content cloner websites trying to figure this out. I’ve spent the last five evenings after work trying to get this to work. Woah read that title again, what a mouthful.

Backblaze b2 api